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#11552 07/15/02 04:20 PM
Joined: Mar 2001
Posts: 2,056
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Redsy Offline OP
Member
Copper GEC, copper water line. Are zinc-alloy clamps OK?
The last few times I ordered clamps from the supply house, they sent zinc. I prefer brass.
Anyone?

#11553 07/15/02 04:44 PM
Joined: Oct 2000
Posts: 2,749
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Joe Tedesco, NEC Consultant
#11554 07/16/02 07:08 AM
Joined: Mar 2001
Posts: 2,056
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Redsy Offline OP
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Thanks, Joe.
The page doesn't state conductor material compatibilities, but I spoke to my supplier and got the box for the zinc clamps, which shows use for copper conductors and either copper or galvanized pipe.
I have seen what appeared to be these zinc clamps corrode badly when attached to a copper water line, but my supplier said that aluminum clamps are, or were, available. Maybe aluminum is what I saw

#11555 07/16/02 08:20 AM
Joined: Oct 2000
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Redsy,

Our Utility "Red Book" (Guidelines) recommend that zinc-coated, steel type connector be used only on Iron water pipe.

Bill


Bill

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